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Friday, August 24, 2012

What Investors Should Know About Interest Rates

If you're ever looking for a topic to kill conversation so that you can be left alone to think about your investments, start talking about interest rates. Your listener's eyes are guaranteed to glaze over, and you'll be alone in no time.

But if you own investments, the topic is not as dry as you think. In fact, it is something investors should make an effort to understand. According to financial theory, interest rates - which change all the time - are fundamental to company valuation, and therefore play an important role in how we put a price on stocks. Here we take a look at the relationship between interest rates and stock price. (For background reading, check out How Interest Rates Affect The Stock Market.)

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Interest Rates: The Cost of Money

Think of an interest rate as the cost of money, which - just like the cost of production, labor, and other expenses - is a factor of a company's profitability.

The fundamental cost of money to an investor is the Treasury note rate, whose return is guaranteed by the "full faith and credit" of the U.S. government. According to financial theory, a stock's value proposition starts there: stocks are risky assets, even riskier than bonds because bondholders are paid their capital before stockholders in the event of bankruptcy. Therefore, investors require a higher return for taking on extra risk by investing in stocks instead of Treasury notes, which are guaranteed to pay a certain return.

The extra return that investors can theoretically expect from stocks is referred to as the "risk premium". Historically, the risk premium runs at around 7%. This means that if the risk-free rate (the Treasury note rate) is 4%, then investors would demand a return of 11% from a stock. Therefore, the total return on a stock is the sum of two parts: the risk-free rate and the risk premium. If you want higher returns, you must invest in riskier stocks because they offer a higher risk premium than, say, stronger blue chip companies. In theory, rational investors will select an investment with a return that is high enough to compensate for the lost opportunity of earning interest from the guaranteed Treasury note and for taking on additional risk. (To learn more, see The Equity-Risk Premium: More Risk For Higher Returns.)

Risk and Return: An Inverse Relationship

If the required return rises, the stock price will fall, and vice versa. This makes sense: if nothing else changes, the price needs to be lower for the investor to have the required return. There is an inverse relationship between required return and the stock price investors assign to a stock.

The required return might rise if the risk premium or the risk-free rate increases. For instance, the risk premium might go up for a company if one of its top managers resigns or if the company suddenly decides to lower its dividend payments. And the risk-free rate will increase if interest rates rise.

So, changes in interest rates impact the theoretical value of companies and their shares: basically, a share's fair value is its projected future cash flows discounted to the present using the investor's required rate of return. If interest rates fall and everything else is held constant, share value should rise. That's why the market cheers when the U.S. Federal Reserve announces a rate cut. Conversely, if the Fed raises rates (holding everything else constant), share values ought to fall.

How Interest Rates Affect Companies

Interest rates impact a company's operations too. Any increase in the interest rates that it pays will raise its cost of capital. Therefore, a company has to work harder to generate higher returns in a high interest environment. Otherwise, the bloated interest expense will eat away at its profits. Lower profits, lower cash inflows and a higher required rate of return for investors all translate into depressed fair value for the company's stock.

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Moreover, if interest rate costs shoot up to such a level that the company has problems paying off its debt, then its survival may be threatened. In that case, investors will demand an even higher risk premium. As a result, the fair value will fall even further. (Find out what debt can do to your investment in Will Corporate Debt Drag Your Stock Down?)

Finally, high interest rates normally go hand in hand with a sluggish economy. They prevent people from buying things and companies from investing in growth opportunities. As a result, sales and profits drop, and so do share prices.

Conclusion

In financial theory, valuation begins with a simple question: if you put money into this company, what are the chances you will get a better return than if you invest in something else? Interest rates play an important part in determining what that something else might be.

Source: http://www.investopedia.com/

Disclaimer…The subject matters expressed above is based purely on technical analysis and personal opinions of the writer. it is not a solicitation to buy or sell.

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